By Dave from Chicago on November 16, 2012

What kind of sealant do I need to seal a single wall vent pipe for a wood stove? Will a high temp silicone sealant with a temperature range up to 500 degrees work?

By Collin C. - NFI Master Hearth Professional on November 19, 2012

Answer:

Typically, sealant is not used on single wall stovepipe joints. Properly crimped stovepipe will not leak, nor does the newer welded pipe, which fits together very tightly.

It is prudent to use sheet metal screws at each joint, as this will hold the pipe together in the event of a fire. However, when attaching the pipe adapter to the outlet on the stove, I recommend using Rutland Pre-Mixed Black Furnace Cement. The flue outlet can achieve temperatures in excess of 1,000 degrees, and this material is designed to deal with that heat range.

By Stu from Richville, NY on January 19, 2013

Can I buy 8" by 54" seamless pipe, and also can I add a damper in seamless pipe?

By Collin C. - NFI Master Hearth Professional on January 21, 2013

Answer:

While we are a retailer of single walled stovepipe, we do not have the facilities to custom fabricate seamless lengths of piping. This would likely need to be done by a custom sheet metal fabricator, as I am not aware of a product on the market in the exact length you need.

By John from Hilton , NY on March 9, 2013

I have a small woodburner that I am refurbishing. It has an oval flue opening that measures approx. 3 7/8" x 7 1/2" . Which oval to round adapter should I purchase?

By Collin C. - NFI Master Hearth Professional on March 11, 2013

Answer:

While not an exact fit, the BM0037 is definitely the closer adapter to fitting your needs. The BM0039 will definitely be too large. Because the oval on your stove is not a standard size, the adapter may need to be modified slightly to fit. Another option would be to have an adapter made by a local sheet metal fabricator.

By John from Lemoore, CA on January 14, 2015

I've bought a new stove with a 6 inch collar and I need to adapt it to an 8 inch flue/chimney. I want to run a 6 inch chimney connector out 9 feet and attach it to the 8 inch pipe that connects to the ceiling support box, then to an 8 inch double wall through the roof and out the top which is already installed. I've attached a picture for reference with the old stove in place still. Can you tell me what parts I will need to do this?

By Douglas from Hill City, South Dakota on October 13, 2013

I need to connect an 8" oval flue Vermont Castings Encore stove (model #2550) to an installed Supervent chimney system (the double wall pipe sold by Menard's). I see that Heat-Fab single wall pipe is available with an oval to round adapter to fit the stove, but will the other (female) end of the pipe fit a Supervent male connection? I ask because the stove came with some very heavy walled welded pipe of unknown origin and I was surprised to see that the inside diameter of this pipe was too small to accommodate the male end of the pipe I purchased.

By Pat from Weaverville, CA on June 16, 2014

I have a 1970's era wood cook stove (made in Taiwan as best I can tell). I am installing it as an outside cook stove (free standing & not near walls). I need an oval to round connector for the chimney, but it seems to be a bit of an odd size. It is 7 & 1/4" by 3 and 5/8". Can you help me?

By eFireplaceStore on June 16, 2014

Answer:

Unfortunately, we do not have an oval adaptor that is the exact size for your application. Calculating the area, the opening is closest to a 5 inch circle, but is just a bit larger, meaning that a 5 inch circular pipe would not fit into the opening properly. As such, you will need to work with a sheet metal fabricator to have an oval to 5 inch round adaptor made for your application.

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